Connect up --disable-gl-multisampling to command buffer

chrome/gpu/gpu_command_buffer_stub.h

Index: chrome/gpu/gpu_command_buffer_stub.h
diff --git a/chrome/gpu/gpu_command_buffer_stub.h b/chrome/gpu/gpu_command_buffer_stub.h
index 7124e2521623fd6df7e583f8cd905ffca7bf674a..39411205e495f54d3f22bed981949b429fcf6b58 100644
--- a/chrome/gpu/gpu_command_buffer_stub.h
+++ b/chrome/gpu/gpu_command_buffer_stub.h
@@ -27,16 +27,18 @@ class GpuCommandBufferStub
       public IPC::Message::Sender,
       public base::SupportsWeakPtr<GpuCommandBufferStub> {
  public:
-  GpuCommandBufferStub(GpuChannel* channel,
-                       gfx::PluginWindowHandle handle,
-                       GpuCommandBufferStub* parent,
-                       const gfx::Size& size,
-                       const std::string& allowed_extensions,
-                       const std::vector<int32>& attribs,
-                       uint32 parent_texture_id,
-                       int32 route_id,
-                       int32 renderer_id,
-                       int32 render_view_id);
+  GpuCommandBufferStub(
+      GpuChannel* channel,
+      gfx::PluginWindowHandle handle,
+      GpuCommandBufferStub* parent,
+      const gfx::Size& size,
+      const gpu::gles2::DisallowedExtensions& disallowed_extensions,
+      const std::string& allowed_extensions,
+      const std::vector<int32>& attribs,
+      uint32 parent_texture_id,
+      int32 route_id,
+      int32 renderer_id,
+      int32 render_view_id);
 
   virtual ~GpuCommandBufferStub();
 
@@ -106,6 +108,7 @@ class GpuCommandBufferStub
   gfx::PluginWindowHandle handle_;
   base::WeakPtr<GpuCommandBufferStub> parent_;
   gfx::Size initial_size_;
+  gpu::gles2::DisallowedExtensions disallowed_extensions_;
   std::string allowed_extensions_;
   std::vector<int32> requested_attribs_;
   uint32 parent_texture_id_;